Did you look over this abstract that I included
http://www.ncbi.nlm.nih.gov/entrez/q...&dopt=Abstract, dated Jan. 1998, which has the following quote?
Quote:
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Steady-state uptake of 65Zn by human intestine epithelial cells, and monkey kidney fibroblasts was not significantly different with zinc chloride (ZnCl2), ZnMet, or zinc propionate (ZnProp) (P > 0.05).
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(I tend to not quote from linked abstracts and documents unless the interesting information is buried deep within.)
Your highlighted area of
http://www.inchem.org/documents/jecf...no/v17je33.htm states,
“however, the major site (of zinc absorption) is the second portion of duodenum”.
Per
http://en.wikipedia.org/wiki/Duodenum, the function of the duodenum is…
Quote:
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The duodenum is largely responsible for the breakdown of food in the small intestine. Brunner's glands are only found in the duodenum and they secrete mucus. These mucus filled glands are composed of simple cuboidal epithelial cells. The duodenum wall is composed of a very thin layer of cells that forms the muscularis mucosae.The duodenum is almost entirely retroperitoneal. The pH in the duodenum is approximately nine (slightly basic).
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Also, my impression from reading the full text version of PMID 10801947
http://jn.nutrition.org/cgi/content/full/130/5/1378S was although it seems logical that the zinc-methionine complex should be highly absorbable, certain tests have not appeared to bear this out.
…
It’s really not that big of a deal to me, I just think it’s good to provide information and references from all angles (or conflicting studies) and people can then decide how to supplement based on their needs/preferences.
